Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vX5qG6A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6c80c590-b38c-43d0-90f0-e341fb7d93f7",
      "cw-40e3bbe7-4dd3-44bf-9c93-8209511f5298"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e04fbbdc-5329-4c73-b621-6655a7f6dfe8",
    "manifestId": "https://dam.iuav.it/iuav/containers/vX5qG6A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-40e3bbe7-4dd3-44bf-9c93-8209511f5298"
  }
}